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today's howtos

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  • What are Bash Environment Variables

    In computing, variable is a term that can be used to assign it any value or to use the variable dynamically in accomplishing the specific task. For instance, programmers declare variables by any symbol (alphabetical letters mostly) and can be used to act as a different value in several programs. Our operating systems have a list of variables that are used to manipulate the programs or processes in a computer and are known as environment variables. These variables reside in every kind of OS and can be handled (create, edit, delete,) as like other variables in a PC. Like other operating systems, Linux also has environment variables, and these variables are used in several scripts and programs within the Linux environment. Contrary to these environment variables, a variable type named as shell variables also exists in Linux, but they are active in the current instance of the shell, once the shell environment is terminated the shell variable is also washed out. In this guide, we will briefly explain the bash environment variables: Before a deep insight let’s go through the basics of environment variables:

  • How to Install & Use ClamAV on AlmaLinux 8 - LinuxCapable

    ClamAV is an open-source and free antivirus software toolkit able to detect many types of malicious software, including viruses, trojans, malware, adware, rootkits, and other malicious threats. One of its main uses of ClamAV is on mail servers as a server-side email virus scanner or used on file hosting servers to periodically scan to make sure files are clean, especially if the public can upload to the server.

    ClamAV supports multiple file formats (documents, executables, or archives), utilizes multi-thread scanner features, and receives updates for its signature database daily to sometimes multiple times per day for the latest protection.

    In the following tutorial, you will learn how to install and use ClamAV on AlmaLinux 8.

  • Sleeping and waiting on Linux | Network World

    The Linux sleep and wait commands allow you to run commands at a chosen pace or capture and display the exit status of a task after waiting for it to finish. Sleep simply inserts a timed pause between commands. Wait, on the other hand, waits until a process completes before notifying you that it has finished.

  • Can Prometheus Monitor Network Devices

    Most of the network devices support the SNMP (Simple Network Management Protocol) protocol. You can use the Prometheus snmp_exporter to monitor SNMP-supported network devices with Prometheus and Grafana.

    In this article, I will show you how to monitor the network of a home router (TP-Link Archer C5 V4) with Prometheus and Grafana. So, let’s get started.

  • SSH Authorized Keys Example Usage

    SSH (Secure Shell) is a protocol used to remotely and safely (encrypted) access systems. The SSH server runs on the remote machine, and the SSH client on your working machine. Communication between client and server is typical via the command line. Now, there are several ways of authenticating the connection – password authentication, public/private key-based authentication (using the authorized_key file), and host-based authentication (using the known_host file).

  • Create a New DataFrame From an Existing DataFrame in Pandas?

    Sometimes, we need to copy the existing DataFrame with data and indices. However, copying the whole DataFrame is also another way for there to be a direct relationship created between the old DataFrame and the new DataFrame. If we make any changes in the old DataFrame, it will also affect the new DataFrame or vice-versa.

    In this article, we are going to see pandas.DataFrame.copy () method, which is used for copy () dataframe.

    If we want to create a new DataFrame from an existing DataFrame, then we can use the copy()method. So, in this article, we are going to see how we can use the Pandas DataFrame.copy() method to create another DataFrame from an existing DataFrame.

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digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.